Sidebar: Use different times for auto-expand vs. auto-collapse of sidebar items - #16870
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…nd SidebarModel::UrlRole The URLs associated with the tree items are used during Drag & Drop operations to identify those tree items.
This was referenced Aug 10, 2026
…in logic to SidebarModel
Starting with at least Qt 5.0.0 (released in 2011) and still present in current versions of Qt (Qt 6.8.0 at the time of this commit), there is a bug in the implementation of QTreeView::dragMoveEvent and autoExpandDelay: QT BUG DESCRIPTION Instead of resetting the delay timer whenever the mouse moves to a new item, it is reset on every little mouse movement, which makes autoExpand useless e.g. on laptop touchpads. OUR WORKAROUND Only reset the delay timer whenever the mouse has moved to a new item, by bypassing QTreeView::dragMoveEvent() and directly calling QAbstractItemView::dragMoveEvent() instead unless the mouse has moved to a new item.
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This improves usability on laptop touchpads and other devices where accurate movements while holding down the mouse button are difficult.
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This improves usability on laptop touchpads and other devices where accurate movements while holding down the mouse button are difficult.
This builds upon #16869.